TA在国内进行了cancer related 的手术治疗。医生建议再进行1～2年的中医调理。再说， TA在美国连白卡也没有，治疗条件比在国内差多了。 这个理由strong吗？
-I thnk so, provide the Dr. dianogsis/letters indicating the illeness do not allow him to travel long distance and need to be continue treatment in the hospital an also provide the hospital bills to show the entire treatment history. After he get the SB-1 visa to enter US, his green card will be activated.
So,TA要去广州申请SB-1 Visa，如果不过的话， 就直接把绿卡交上去，改签B2？
-No. Need to make another appoinment for B2 and green card abandoment.
Just one trip， right？ 我们这里需要为B2准备什么材料吗？
- One trip for green card abandonment and B2 visa applicaiton. Complete I-407 for abandonment of green card, and complete DS-160 online for B2 visa application. Check the US Consulate embassy website for the B2 visa applicaiton and green card abandonment. He can apply for the SB-1 visa or B2 visa in any one of the US Consulates in China whichever is convenient to him.
有朋友说， 可以参加中国去加拿大的旅行团，然后我们去温哥华接TA， 再开车从西雅图进来。 可行吗？ 风险如果？
-Don't do that.
谢谢！
